| Siebrand (Simon) Algers Oltmanns (1841 - 1916) |
Peter Hayenga (1845 - 1931) |
| Antje (Anna) Hinderks Jacobs Peterson (1846 - 1932) |
Jantje A Schaeffer (1859 - 1912) |
m. Apr 11, 1906
| Simon (Siebrant) Oltmanns4 | Fannie Hayenga4 |
 b. Sep 14, 1878, Ogle Co ILd. Dec 1, 1961 bur. occ. Farmer bp. |
 b. May 12, 1883, Ogle Co ILd. Jul 19, 1923, Ogle Co IL bur. occ. bp. |
| spouses: 1, 2 |
Children
| Boy Oltmanns [Died as Infant] Jannet Anna Oltmanns John Simon Oltmanns Francis Calvin Oltmanns |